US3308465A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Antenna system
Assignee: Mitsubishi Electric Corp
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Filing: 1963-05-27
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Granted: 1967-03-07
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Expires: 1983-05-27
Abstract
No abstract record available.
Inventors
- 👤 Tamama Tetsuo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:28
CPC Classifications
H; H01; H01Q; H01Q3/00; H01Q3/44; H01Q3/46; H01Q25/00; H01Q3/26; H01Q3/30; H01Q3/34
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
67 words
AN ANTENNA SYSTEM COMPRISING TWO OR MORE RADIATOR ARRAYS DISPOSED IN PARALLEL WITH A SINGLE PLANE AND EACH HAVING INTER-ELEMENT SPACINGS MUCH LARGER THAN ONE-HALF OF THE EMPLOYED WAVELENGTH AND MULTI-LOBE ARRAY DIRECTIVITY OF DIFFERENT ANGULAR SPACING OF LOBES; MEANS INDEPENDENTLY TO DISPLACE ANGULARLY THE DIRECTIVITY OF EACH OF SAID ARRAYS BY INTRODUCING SUITABLE AMOUNTS OF INTER-ELEMENT PHASE DIFFERENCES IN A MANNER THAT ONE AND ONLY ONE
Claim 2
Dependent Claim
67 words
AN ANTENNA SYSTEM COMPRISING TWO OR MORE RADIATOR ARRAYS DISPOSED IN PARALLEL WITH A SINGLE PLANE AND EACH HAVING INTER-ELEMENT SPACINGS MUCH LARGER THAN ONE-HALF OF THE EMPLOYED WAVELENGTH AND MULTI-LOBE ARRAY DIRECTIVITY OF DIFFERENT ANGULAR SPACING OF LOBES; MEANS INDEPENDENTLY TO DISPLACE ANGULARLY THE DIRECTIVITY OF EACH OF SAID ARRAYS BY INTRODUCING SUITABLE AMOUNTS OF INTER-ELEMENT PHASE DIFFERENCES IN A MANNER THAT ONE AND ONLY ONE
References Cited (Backward Citations)
US2245660A
Cited
US3255450A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-03-06 | 1970-09-05 | 1971-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-06 | 1974-09-05 | 1975-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-06 | 1978-09-05 | 1979-03-07 | $7700.00 | Window Closed / Lapsed |